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donut
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I am a software profetional working in Linux and apache hadoop platform.
donut questions
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Hadoop error .ClassCastException: org.apache.hadoop.io.LongWritable cannot be cast to org.apache.hadoop.io.Text
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/util/Tool
Regex for ONE-or-more letters/digits And ZERO-or-more spaces
package org.apache.hadoop.conf does not exist after setting classpath
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